Co-operation in the Dairy Industry

Published by the students of the College of Agriculture, University of Arizona.This article is part of the Arizona Agriculturist collections. Digital access to this material is made possible by the University of Arizona Libraries. Permission to use or to order reproductions must be obtained from the University of Arizona Libraries, Special Collections. Contact us at [email protected], or (520) 621-6423

Induction of Autologous Bone-Marrow Stem Cells by Low-Level Laser Therapy Has Beneficial Effects on the Kidneys Post-Ischemia-Reperfusion Injury in the Rat

Acute renal failure has a 50 %- 80 % mortality rate. Currently, treatment options for this life-threatening disease are limited. Low-level laser therapy (LLLT) has been found to modulate bio-logical activity. The aim of the present study was to investigate the possible beneficial effects of laser application to stem cells in the bone marrow, on the kidneys of rats that had undergone ischemia-reperfusion injury (IRI). IRI was induced by occlusion of the renal artery to 3- and 7-month-old rats for 15 or 30 minutes. In an additional experiment IRI was applied to both kid-neys for 20 min each in 2-3-month-old rats. Rats were then divided randomly into two groups of control and laser-treated. Laser therapy (Ga-Al-As 810 nm, 200 mW output for 2 min) was applied to the bone marrow 1 and 7 days post-IRI to the kidneys, and rats were sacrificed 2 weeks later. Histomorphometry and immunohistochemistry were performed on kidney sections and blood markers for kidney function. Quantitative histomorphometric analysis revealed a reduction in di-latation of the renal tubules, restored structural integrity of the renal tubules, and reduced necro-sis in the laser-treated rats as compared to the control, non-laser-irradiated group. C-kit positive cell density in kidneys post-IRI and laser-treatment was significantly (p = 0.015) 3.2-fold highe

Laocon marbre à Trianon : [dessin]

Référence bibliographique : Robert de Cotte, 1992Référence bibliographique : Fossier, 332Appartient à l’ensemble documentaire : Des18Cott

Psychological aspects of Eros

Based on a lecture given at the Summer Conference of the Guild of Pastoral Psychology, 29 Aug 1991SIGLEGBUnited Kingdo